| Message ID | 1368433260-16073-3-git-send-email-linux@prisktech.co.nz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c index 6d5b6e9..d8fd085 100644 --- a/drivers/clk/clk-vt8500.c +++ b/drivers/clk/clk-vt8500.c @@ -157,10 +157,6 @@ static int vt8500_dclk_set_rate(struct clk_hw *hw, unsigned long rate, divisor = parent_rate / rate; - /* If prate / rate would be decimal, incr the divisor */ - if (rate * divisor < parent_rate) - divisor++; - if (divisor == cdev->div_mask + 1) divisor = 0;
The divisor adjustment code to ensure that a divisor is not rounded down, thereby giving a rate higher than requested, is unnecessary and in some instances results in the actual rate being much lower than requested due to rounding errors. The test is already performed in vtwm_dclk_round_rate(), which is always called when clk_set_rate is called. Due to rounding errors in the line: divisor = parent_rate / rate (clk-vt8500.c:160) we will sometimes end up adjusting the divisor twice - first in round_rate and then again in set_rate. This patch removes the test/adjustment in vtwm_dclk_set_rate. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> --- drivers/clk/clk-vt8500.c | 4 ---- 1 file changed, 4 deletions(-)